The worst student on earth.
Ducoboo is a very inventive dunce and joker, he is very resourceful at finding new ways to copy from his neighbor, to cheat or to defy the teacher's authority.
Ducobu goes on holiday in the south of France.
Back to school for Ducobu, Léonie Gratin and Latouche. But this year, a major rival for Ducobu arrives at school: TGV, the king of cheating 3.0. While the financial situation of Saint-Potache becomes disastrous, the two dunces will have to unite their creativity to win a song contest and save their school.
Ducobu is elected president of the school, much to Léonie and Latouche's despair!
Ducobu takes a gap year on a environmental project, but he really just wants to skip school!
